This ancient town appears is the site of two important Old Testament passages, one in Genesis 37 and another at II Kings 6:13. If you have trouble locating it on a map (most study Bibles contain several maps of the Holy Land during different time periods), below is how several commentators attempt to describe its location.
Pfeiffer: “City near the Plain of Esdraelon, in central Palestine, N of Samaria.”
Carr: “Dothan is a few miles north of Shechem and lay along a trade route from Syria to Egypt.”
Provan locates it 11 miles north of Samaria.
Young: “A city of Manasseh, W. of the Jordan, near Mount Gilboa, N.E. Samaria, and still called Dothan.”
Millard: “The fertile plain of Dothan separates the hills of Samaria from the Carmel range. It provides an easy pass for travellers from Bethshan and Gilead on their way to Egypt.”
Payne: “an ancient city lying on the caravan routes.”
Cogan and Tadmor: “The identification of the ancient city with Tell Dothan, 22 km north of Nablus, was known to Eusebius...Dothan sat astride the western branch of the N-S mountain road, which entered the Jezreel Plain south of Taanach.”
Wenham: “Dothan lies close to the main trade route through Palestine; the Via Maris, which cuts across the plain of Jezreel from the Sea of Galilee to pass along the coastal plain to Egypt.”
LaSor states that Dothan had a “very strategic position with a view of the roads N-S and E-W.”
Genesis 37
Hamilton provides us with an excellent summary of the events in this chapter. “As the text stands, Jacob's sons must be removed some distance from their father. Otherwise, Jacob sending Joseph to inquire about the welfare of the sons and flocks would make no sense. If the sons are close enough to home to return nightly or regularly, Joseph's mission would have been unnecessary. Archaeology has confirmed that both of these Canaanite towns – Schechem and Dothan – were occupied at the time of Joseph (i.e., the Middle Bronze Age). This evidence lends plausibility to the geographical events of the Joseph story...An unidentified man discovers the wandering Joseph and redirects him from Schechen to Dothan (vv. 15-17)...The chance encounter with this anonymous man provides a transition from Joseph's association with his father to Joseph's association with his brothers, from an environment of love, acceptance, and maybe even doting, to one of hostility and rejection. Joseph has this man to thank, or curse, for pointing him toward Dothan.”
Millard points to an interesting archaeological find which also helps confirm the plausibility of the events involving Joseph at this point in his history. “Near the town (now Tell dota) are rectangular cisterns about 10 feet deep similar to the pit into which Joseph was put (Gn. xxxvii. 17ff)...Areas of the Iron Age town which have been cleared show the narrow streets and small houses with storage-pits and bread-ovens of Elisha's day.”
II Kings 6
On the surface, this is an entirely different type of story, which House ably summarizes as follows: “For some unstated reason, Syria once again makes war with Israel, this time by sending a series of raiding parties across the border. Unfortunately for the Syrians, Elisha discerns where their armies will strike and tells Israel's king...Elisha is Israel's best line of defense. Syria's king draws the logical conclusion that he has a traitor in his court...His officers explain that Elisha is the culprit, however, so he dispatches soldiers to Dothan, where the prophet is living...When Elisha and his servant awake, they discover the city surrounded by Syrians...After Elisha prays that his servant may see these 'soldiers,' the man indeed views 'the hills full of horses and chariots of fire...Not content with protection for himself, Elisha provides safety for all Israel.”
To relate the end of the story, God strikes the Syrian army blind and Elisha leads them to Israel's king, urging that they be well fed and allowed to return to Syria safely instead of punishing them. The king agrees.
Martin says, “This incident, including both Elisha's divine protection and humanity, cannot be definitely dated. Syria's ability to reach Dothan (about 12 miles from Samaria) shows a time when Israel's fortunes were at a low ebb – perhaps early in Jehu's reign after he had paid tribute to Assyria, or later when Jehoahaz was suffering under Hazael's unrelieved pressure. Assyria had other preoccupations from 840-810 and left Syria as Israel's main adversary.”
Cogan and Tadmor dispute Martin's interpretation of events, as witnessed by the following comments: “The fact that the Aramaean bands reached as far as Dothan need not mean that Israel was at its nadir, unable to prevent such deep penetrations of its territory because of weakened military position...Raids and ambushes across the border are likely to have characterized relations between Damascus and Samaria all through the ninth century.”
Intertextuality
That is a fancy word designating the fact that similar narratives and same specific language throughout the Old and New Testaments are quite often found in more than one location, helping to confirm the unity of what is recorded in the Bible.
In the case of the two Dothan narratives discussed above, there would appear to be little in common between them. But in terms of general themes, one could say that both incidents had the effect of saving Israel; both involved the help of angels (assuming that the anonymous man who “fortuitously” directed Joseph to his brothers was in fact an angelic being in disguise); both incidents began with a specific revelation to the main character from God; and what initially appeared to be a helpless situation turned out to be for the best in the long run with reconciliation between the opposing parties in the end rather than revenge being sought by the victor.
Moving further afield from those two passages, we can also see a close parallel between the reactions of Jews (1) confronted by overwhelming enemy forces in the experiences of Elisha and his servant and (2) confronted by the army of the Philistines under Goliath (I Samuel 17). In both cases, the Jews are “dismayed and greatly afraid” but end up the conquerors through supernatural help.
That same I Samuel event even has its close parallel with Joseph's experiences at Dothan in that both events begin with the main characters (Joseph and David) being directed by their respective fathers to go visit their older brothers who are located at another town. When that happens, both Joseph and David are criticized by those brothers for their presumption.
There are even parallels between the two OT texts involving Dothan with the early life of Jesus. When His family visits Jerusalem, Jesus becomes separated from them and he stays behind to discuss theological issues with the elders at the Temple. His parents and older step- (or half-) brothers need to return to search him out in a sort of reversal of Joseph searching for his older brothers. And Jesus' reply that he had to be about “his father's business” turns out in a spiritual sense to be the literal reason for Joseph's visit to his brothers in more than one sense.
Also, it is hard to miss the similar animosity shown on the part of Joseph's brothers toward him and the attitude that Jesus' brothers demonstrated toward Him when He continued to be about “his father's business” in his early preaching. But in each case, the whole family was eventually reunited.
Joseph's total forgiveness of his brothers' treatment of him is also paralleled in the way Elisha ensured that the captured Syrian troops were treated kindly.
I am sure that you could find other examples of intertextuality between the passages cited above.