From the Bolivian news, they diverted from Cobija to Trinidad (±360 miles) and the weather was just as bad there. There was no fuel left when they came down 5km (?) from Trinidad after two (?) GAs, some dispute as to whether they were trying another approach and ran out of fuel or decided to deplete it entirely and put down wherever they could. An army or police post saw them gliding in and were on the spot quickly.
The reports say both wings were ripped off; Trinidad hospitals attended most passengers and crew for cuts and bruises; two more serious injuries were to a flight attendant and a passenger.
All the photos show swampy land with relatively low (10-20ft) shrubs/trees. All that land is flat, with large cleared areas and, with the rains, would have have been pretty slippery.